魚類の細胞遺伝学的研究-3-カワハギStephanolepis cirrhiferにみられた複合性染色体〔英文〕

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概要

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• The chromosome number of the female filefish, Stephanolepis cirrhifer, was thirty-four (2n=34), all of which were acrocentrics. In the males of this species, however, the number was thirty-three (2n=33), among which one large metacentric chromosome was always included. Haploid chromosome numbers in the secondary spermatocytes showed n=16 and n=17. In the former cells, one large metacentric chromosome found in the somatic and germ cells seemed to be a Y element. Thus, the sex chromosome mechanism in this species is inferred to be a multiple system, namely X1X1X2X2 in the female and X1X2Y in the male.

著者

• 室伏 誠

  Laboratory of Biology, Mishima Junior College, Nihon University

• MUROFUSHI Makoto

  Laboratory of Biology, Mishima Junior College, Nihon University

• NISHIKAWA Shohei

  Department of Aquiculture and Biology, Shimonoseki University of Fisheries

• YOSIDA Tosihide

  Department of Cytogenetics, National Institute of Genetics

• OIKAWA SIN

  Department of Agriculture, Kyushu University

• MUROFUSHI MAKOTO

  Laboratory of Biology, Faculty of Mishima Junior College, Nihon University

• YOSIDA TOSIHIDE

  Department of Anatomy, School of Medicine, Kanazawa University

関連論文

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• 魚類の細胞遺伝学的研究-3-カワハギStephanolepis cirrhiferにみられた複合性染色体〔英文〕
• SEX CHROMOSOME ANOMALIES IN F2 HYBRIDS BETWEEN OCEANIAN AND CEYLONESE TYPE BLACK RATS
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• Studies on the karyotype differentiation of the norway rat, IV. Segregation and fertility of the norway rats with inversion pair No. 1.
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